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Evaluare reactia de schimb

Authored by aura ilovan

Chemistry

8th Grade

Evaluare reactia de schimb
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9 questions

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1.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

Hidroxidul de Sodiu este

o baza tare

insolubil in apa

o baza slaba

sarea de bucatarie

2.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

Acidul sulfuric se identifica cu

azotat de argint

clorura de Bariu

hidroxid de sodiu

dioxid de carbon

3.

MULTIPLE CHOICE QUESTION

30 sec • Ungraded

Este adevarat ca reactia de schimb are loc intre

doua substante simple

doua substante compuse

4.

FILL IN THE BLANK QUESTION

1 min • 1 pt

Acizii tari deplaseaza .................... din sarurile lor

5.

FILL IN THE BLANK QUESTION

1 min • 1 pt

La adaugarea de................... peste carbonati se produce efervescenta

6.

MULTIPLE CHOICE QUESTION

30 sec • Ungraded

Tulburarea apei de var este

reactia dintre dioxid de carbon si apa

reactia dintre dioxid de carbon si hidroxid de calciu

7.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

Rezulta un precipitat din reactia dintre:

clorura de natriu si azotat de argint

hidroxid de natriu si acid clorhidric

carbonat de calciu si acid sulfuric

dioxid de carbon si apa

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